CVE-2026-122006

critical

Description

The activestorage gem before 8.1.4.1 for Ruby on Rails, when ImageMagick attachment processing occurs, can allow server read and write operations (e.g., reading secret_key_base) because the ImageMagick analyzer runs when a file is attached, and there is not an ImageMagick security policy to block unintended functionality.

References

https://github.com/rubysec/ruby-advisory-db/pull/1300

https://github.com/rails/rails/security/advisories/GHSA-f3w6-w445-fwh9

https://github.com/rails/rails/releases/tag/v8.1.4.1

https://github.com/rails/rails/releases/tag/v8.0.5.2

https://github.com/digitalocean/droplet-1-clicks/pull/488

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-116914

Details

Source: Mitre, NVD

Published: 2026-11-04

Updated: 2026-11-04

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical